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SCLEM 11-02-2009 09:28 PM

Ducane Model MPGA075B3B furnace
What is wrong when the red lite on circuit board blinks steady? Furnace fires up, but I don't know about red blinking lite, something must be wrong. Thank you.

yuri 11-02-2009 09:33 PM

That is normal. It is called a heartbeat. If it had pauses then it is an error code and those are on the back of one of the doors.

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